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Finding the Fourth Proportional to 12,070.92, 16,657.86 and 7,355.19

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Solution

The fourth proportional to 12,070.92, 16,657.86 and 7,355.19 is: 10,150.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,070.92 : 16,657.86 = 7,355.19 : x
  2. Step 2: Convert to fraction form
    12,070.92/16,657.86 = 7,355.19/x
  3. Step 3: Cross multiply
    12,070.92x = 16,657.86 × 7,355.19
  4. Step 4: Simplify right side
    12,070.92x = 122,521,725.29
  5. Step 5: Solve for x
    x = 122,521,725.29/12,070.92
  6. Step 6: Final answer
    x = 10,150.16

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Half scale
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Double scale
Find fourth proportional to 12,071.92, 16,659.24 and 7,356.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.